This is a page about our invention, the extreme money-box. If you worry about not knowing how much money you have in your money-box or how to get your money out of your money-box your worries have come to an end. The forces of the extreme money-box are friction (the motion of the lid) and kinetic (the money going though the slot in the lid and the falling into the money box. They are transforms and transformations of energy.

Invention needs:
3 pieces of wood 16 cms tall and 13 cms wide,
2 pieces of wood 13 cms tall and wide
1 piece of clear plastic 16 cms tall and 13 cms wide
1 hinge small as possible
1 padlock

Method
Cut the wood to the dimensions shown above.
Screw all the pieces of wood together except for the top.
Now screw together the hard plastic see through piece to the wood.
Add the hinges to one of the top sides of the box.
Attach the top bit of wood to the hinges and this will be your lid.
Attach the rope to the lid and that will help you to open the money box.
You are now finished your money box except if you want to paint it.
Your money box should look like a rectangle prism with a see through side with a lid. And maybe decorated. Enjoy!

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